Babkes clayton



(No Model.)

B. CLAYTON.

SPRING MOTOR.

No. 309,524. Patented Dec. 23, 1884.

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BARNES CLAYTON, Oh PHILADELPHIA, PENNSYLVANIA.

SPRING Il/IOTOR.

SPEGIFICATION forming part of Letters Patent 310309524, dated December 23, 1884.

Application filed May 31, 185 (No model.)

To all whom, it may concern:

Be it known that I, BARNES OLA'yroN, of the city and county of Philadelphia, and State of Pennsylvania, have made new and useful Improvements in Springhlotors, of which the following is a specification.

My invention has reference to spring-mo; tors; and it consists in certain improvements fully set forth in the following specification, and shown in the accompanying drawings, which form part thereof.

I-Ieretofore it has been customary to make spring-motors with spiral or coiled springs; but in large motors great diiiiculty has been experienced in securing a strong spring eombined with durability, and the expense is very great.

The object of my invention is to construct a simple, durable, and inexpensive motor in which the springs are formed of thin flat blades laid one upon another in the manner commonly seen in carriage-springs.

In the drawings, Figure l is a side elevation of a spring-motor embodying my improve ments. Fig. 2 is a sectional plan view of same on line :0 .r, and Fig. 3 is a side elevation of a modified form thereof.

A is a frame of any suitable construction. B B are two sets of springs, formed of thin flat blades, the upper ones of which become short er and shorter until close to the supports or bases 1), so that the free ends I) can be drawn up, causing the spring to assume the curve of a spiral, as indicated in dotted lines. To make the motor compact, I place these springs close to the bottom of frame A, and arrange the springs of the two sets alternately, as shown-in Fig. 2. These springs are simple in construction, cheap to make, and most durable in their elasticity. They can be made of any strength required, and while their movement is small, they can be geared up so as to cause the motor to run for a long period before it is necessary to rewind. The ends of these springs are connected by bands or chains F to the drums D D, which are provided with the square heads E, upon which to apply the key to wind them up. These drums are connected with the spur-wheels G O by pawl-andratchet devices (I, as is customary in springmotors, to allow of their being wound up without disturbing the gearing.

These spurwheels are arranged to drive the speed-gearing G by means of pinions I, J, and K.

H is the band-wheel by which the power is applied to the sewing-machine or other mechanism to be set in motion, or the gearing may connect direct therewith.

The pinion J is carried by a lever, L, having the center of pinion Ifor a fulcrum, and may be set and secured by a locking-segment, M.

Pivot/ed on the arm L and center of pinion J as a fulcrum is a bell-crank lever, N, which may be secured in one of three positions by a segment, I, carried by arm L. The free arm of bell-crank N carries the pinion K, which is adapted to mesh with the spur-wheels O G, and the three pinions I, J, and K mesh with each other at all times. In the position shown the drum 1) is driving the gearing G. To make drum D do this work, it is simply necessary to shift the lever N, whenthe pinion K will be thrown out of contact with spurwheel (3 and into contact with spur-wheel 0, moving. about pinion J as a center. Now, to make both drums drive the gear, it is simply necessary to shift the arm N to the middle position, and. then depress lever L until the pinion K is meshing with both the spurwheels 0 and C, which rotate in the same direction.

If desired, a series of springs maybe arranged one above the other, to multiply the power of the motor.

In place of thesprings having one end rigid, I may make them double, as shown in Fig. 3, in which these springs B are made up of leaves, as before, but are secured to the supportingrod R at their middle points, and the free flexible ends are connected by chains or bands to the drums, as before. In place of a single spring a series of them may be arranged parallel to each other and connected together, as shown.

lVhile I prefer the construction shown I do not limit myself thereto, as the details may be modified in various ways without departing from my invention.

Having now described my invention, what I claim as new, and desire'to secure by Letters Patent, is-

1. A springmotor having the springs therein 'formedof a series of thin straight plates, and having one of their ends securely held and the other free, and secured to the actuating cord, band, or chain, substantially as and for the purpose specified.

2. In a spring-motor, the combination of a I spring consisting of a series of flat plates rig gearing, and means, substantially asset forth, for putting the said speed-gearing into action by either of said drums, substantially as and for the purpose specified.

4. In a spring-motor, two sets of springs formed of fiat plates rigidly secured at one end, in combination with two drums, speedgearing, and means, substantially as set forth, for putting the said speed-gearing into action by either or both of said drums, substantially as and for the purpose specified.

5. In a motor, a series of straight springs arranged parallel and having their free ends connected together, in combination with a band or chain to'transmit power, acted on by all of said springs, substantially as and for the purpose specified.

6. The combination of frame A, springs B 13, bands F, drums D D, having spur-wheels O O, speed-gear G, pinions I, J, and K, and levers L and N, substantially as and for the purpose specified.

In testimony of which invention I hereunto set my hand.

BARNES CLAYTON.

Witnesses:

R. M. HUNTER,

, J. ALFRED SMITH. 

